3DOM’s next-generation batteries to be used by Asia’s floating and offshore renewables specialist G8

A newly finished G8 cabling project in Singapore transports solar power and plant data generated offshore to land.

G8, a subsea engineering and floating and offshore renewable energy firm, will utilise sophisticated lithium-ion battery technology manufactured by 3DOM Singapore (3DOM SG) in all of its Asian renewable energy projects.

Following the signing of a transaction agreement last week, 3DOM SG, a subsidiary of Japanese lithium battery startup 3DOM, will become the primary provider of batteries and energy storage solutions for G8 wind, solar, and hydroelectric power projects.

As part of the agreement, 3DOM would invest up to US$10 million in G8, acquiring a 5% share in the firm, valuing it at US$200 million. A share swap will also take place, with new shares in 3DOM SG representing an 8% stake in its share capital being issued in return for a 24% holding in G8’s share capital. G8 Subsea, is developing over 2.5GW of renewable energy and subsea transmission projects in Asia, including offshore wind farms and floating solar PV.

Meanwhile, 3DOM has created technologies such as a lithium manganese iron phosphate (LMFP) battery with a high energy density cathode material that has better thermal stability and cycle life than nickel manganese cobalt (NMC) batteries, according to the company.

It has also created high temperature resistant lithium-ion batteries, which it claims may be utilized in a wide range of applications, especially in semi-tropical and tropical climates. Furthermore, it includes a patented separator that is more than 70% porous and can function at temperatures up to 400°C — the latter development, according to 3DOM, decreases the danger of explosions and fires.

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The parent business, 3DOM, owns the majority of the battery technology and patents, however some are shared with partners such as Tokyo Metropolitan University. 3DOM has received clearance from all of its partners to license its technology through 3DOM SG.

3DOM was created in Japan in 2014, and its Singapore-based subsidiary was established in 2019. It expects to commence revenue-generating activities next year, beginning with the LFMP and high temperature resistant Li-ion batteries. 3DOM is in discussions with OEM battery manufacturers in Japan and Taiwan, and expects to service the electric transportation and stationary energy storage industries.

In the agreement with G8, 3DOM SG will deliver battery monitoring and control technology, as well as batteries, and will allocate first and second-life batteries to projects. The partners will also look into other renewable energy sources, such as biomass, as well as wind, solar, and hydro.

In the field of electric mobility, the G8 and 3DOM will investigate the creation of a circular economy of first and second-life battery supply.

In mid-November, 3DOM SG announced a planned’reverse takeover’ with Singapore investment group Reenova, which would value the battery company at US$1 billion.